I seem to recognize that yellow & red rig with the sway bar.
I haven't had any issues on the dirt roads we have around here - at least the ones I've been on. I really like the way it performs on the street.
I've been drooling over that K1200S rig too - but my back would not deal well with the riding position. I seriously considered buying it but couldn't figure out how to modify the handlebars and footpegs and such. Now if it were a K13GT or K16GT set-up . . .